Nut-lock.



JOI-LN MOHAN, OIF PHILADELPHIA, PENNSYLVAIKSA.

NUT-LDC?.

Specification of Letters Patent.

Patentetiet. 233?, MM2.

Application filed May K4, 15312. Serial No. 697,1l9.

ile it linwfin that l, JOHN Mettant a Cit-ilfnited Slides, residing ut Philain the enunty of Philadelphia and viv v it-,nns'Misinnn have inre'ied and useful improvement A which tollovfing is and has for un object to provide a device et' this eintrat-ter in which the nut is loelted against turning in'm'enient ineans nl a l-Ley httaeletl to a u' her, the latter hee ot' rerary nintien.

,le tui-ther object is to provide :i holt having une nr nnre rlaiteneffl, faces, and a i-:.. lnfr huving "i nwiingr the slape ot tie P: is prete ted rnni .eL i Jets in View, the

ertain novel features and enininntiens and nrparte" ns' will he more t'ully l ','friied and pointed ont in drawings: fiig'ure l, senti` n illustrating my iin- 'tinn with a rail joint. 1 de View nfl the Janie. Fis '3/ n @miti-f lhi" i the t hem and il View (ilE Athe lacking i iii; ich my inip n ,nit Je is :rl o ie washer he holt #if is thitharing upenn l0 in et@ walls corre- ;es oil the holt iisitioned nn the 'i hy reason ,r Si also in wn rally ess which is t -shrf-s-:n :it i', hey i8 which pin seen C havin@ iis 'rentinn relates to ininrm'einents in "nut ii t with a circular enlargement l5, the latter at I its edge being formed with ratchet teeth 16 1 for a purpose hereinafter explained. l in operation, the holt is positioned inthe r openings in the rail and fish plates and the irl-Ching washer 9 placed thereon, a spacing l washer i7 being interposed between the said l locking Washer 9 :ind the fish plate 2. YlheI hen screwed on and when it has been tightly jammed, one leOr of the locking key is bent inwardly parallel with the bolt. flhis leg` will engage between 'the ratchet teeth lt), and securely look the nui, as the Washer 9 is prevented `l'roin turning because of the flattened walls in the opening bl0.

l provide the lrey .i3 with two so that when the mit is strewed honie, it the highest point of a ratchet tooth is' directly heneath Gne leg, the other one can he lient7 but it. is to he nnderstned that only one need he bent to loch the nut.

l have shown my improved nnt lock in connection with a rail joint and so described the saine, hnt l would have it under-A stood that my improvements are not limited to this class alone7 but may he nsed wherever it can he adapted.

Various slight changes might he inude in the general forni and arrangement oi parts described without departing t'rmn niv invvention, and hence do not liinit inysell to the preeise details set tn rth` hut consider l myself aft, libert)Y to nnilie such vhanges and laltera'l'ions as fairly 'Fall withinlhe spirit and set/pe of the appended ehiinis.

Having thus described my invention, what i Chinn as'new und desire to secure hy lietters iatent :isq' f l. A .init incl( comprising .a washer constructed to he. held against rotary ninfi'ernent on a bolt, said washer having a reeeds' ex` tending' *inwardly .from its; penphery and having an enlarged inner end, a key in said recess eoniprising' a strip of nietal henlt lie- 'tween its ends iorn1ngan enlargei/nent and parallel legs, said enlargement located in the enlarged inner" end ot theL recess and' seid 'lem projeeizingheynnd the periphery of the Washer, and adapted to be l e`nt into locked engagement with n nut, substntially as described; K l

fr nut loch' comprising a vwasher constructed tn he heldn against'rotary movement on a lllinlt, said washer having a reeess tending inwardly from its periphery and which ene of said key lege are aclaped to be positioned, substantially as deseribecl.

haring an enlarged inner end, :i key in seid l recess comprising a strip of metal lientbel tween ils ends fornyiing :1n enlargement and l In testimony whereof I lieve Signed my parallel legs, Said enlargement leveled in the naine to this specification. in the presence of a enlnrged inner enil of the recess uml said two subscribingwitnesses.

legs; projecting beyond the periphery of tilie i JOHN MQHN.

mislierv` :i nur, a Circular enlargement en the inner enel of die nut adapted to be pesi- I i'ienerl against the waslien :incl a circular sel() riesI of teetli en smid enlargement between I lvlitneeses L. A. DEMPSEY, MAURICE l". GERHARD. 

